Myths vs facts: IgE and fatigue

The claim that elevated IgE levels directly cause fatigue is a myth. IgE is an antibody involved in allergic responses. While allergic conditions like hay fever or asthma can contribute to fatigue through sleep disruption and inflammation, a causal link between isolated high IgE and fatigue is not scientifically established. Many factors such as sleep quality, stress, nutrition, or other medical conditions are far more relevant. An IgE test alone is therefore not a valid marker for fatigue. The evidence is unclear – no robust studies support a direct connection. Consumers should not rely on such single tests but seek comprehensive medical evaluation.